I've got a cheapo poulan saw that I bought out of necessity some years back, but I had a friend come cut some wood for me with his Stihl.
Stihl stuff appears to mostly be made in the USA. I know the saw I used had a 24" bar, but it seemed to do a lot better with a 20". So it seemed as if they overrated the power of the saw just a bit, and buying a bigger saw for a slightly smaller blade seemed to be an excellent idea.
I've used a couple different chainsaws, but the Stihl and the Husky were the best, and the Stihl, being US made, gets my dollar, next time I need one.